Water Quality Studies

• Organochlorine Pesticides and Polychlorinated Biphenyls (PCB) Concentrations in Muscle Tissue of Fish Collected from the San Joaquin River and Sacramento River Watersheds and Delta During 2005, 1.06 MB*, PDF (PDF info)
  Results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). Questions and comments should be directed to Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• Endocrine Disrupting Chemical Assay Results - Lower Sacramento River Surface Water Ambient Monitoring Program Fact Sheet, 319 KB, PDF (PDF info)
  Results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). Questions and comments should be directed to Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov or to Chris Foe at (916) 464-4713 or by email to: cfoe@waterboards.ca.gov.
• Screening California Surface Waters for Estrogenic Endocrine Disrupting Chemicals (EEDC) with a Juvenile Rainbow Trout Liver Vitellogenin mRNA Procedure, 249 KB, PDF (PDF info)
  Results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). Questions and comments should be directed to Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• A Summary of the 2004 TMDL Monitoring for Selected Pesticides in the Sacramento-San Joaquin Delta, January-February 2004, 379 KB, PDF (PDF info)
  Questions and comments should be directed to Daniel McClure at (916) 464-4751 or by email to: dmcclure@waterboards.ca.gov.
• A Summary of the 2004 TMDL Monitoring for Selected Pesticides in the Sacramento-San Joaquin Delta, California, March-April 2004, 461 KB, PDF (PDF info)
  Questions and comments should be directed to Daniel McClure at (916) 464-4751 or by email to: dmcclure@waterboards.ca.gov.
• Results for the 2005 TMDL Monitoring for Diazinon and Chlorpyrifos in California’s Central Valley Waterways, January – February 2005, 568 KB, PDF (PDF info)
  Questions and comments should be directed to Daniel McClure at (916) 464-4751 or by email to: dmcclure@waterboards.ca.gov.
• A Summary of the 2005 TMDL Monitoring for Selected Pesticides in the Sacramento-San Joaquin Delta, California, March-May 2005, 389 KB, PDF (PDF info)
  Questions and comments should be directed to Daniel McClure at (916) 464-4751 or by email to: dmcclure@waterboards.ca.gov.
• Acute Toxicity of Sacramento Area Urban Creeks to Ceriodaphnia dubia, 306 KB, PDF (PDF info)
  Results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). Sacramento area urban creeks tested for acute toxicity to Ceriodaphnia dubia. Questions and comments should be directed to Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• Acute Toxicity of American River and Tributary Waters to Ceriodphnia dubia and Fathead Minnows, 209 KB, PDF (PDF info)
  Results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). American River watershed tested for acute toxicity to Ceriodaphnia dubia and Fathead Minnows. Questions and comments should be directed to Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• Sacramento, Delta and San Joaquin River Basins Organophosphorus Pesticides TMDL Monitoring Quality Assurance Project Plan for 2005, 988 KB, PDF (PDF info)
  The QAPP was written for the Pesticide TMDL Unit’s sampling plan for 2005. The plans include organophosphate pesticide monitoring in the Sacramento and San Joaquin River Basin, and Sacramento-San Joaquin Delta. Questions and comments should be directed to Danny McClure at (916) 464-4751 or by email to: dmcclure@waterboards.ca.gov.
• Opportunity for Public Review of Draft Water Quality Report: Sediment Toxicity Testing in the San Joaquin River Basin, October 2001 through September 2005.
  The objectives of this sediment toxicity project were to determine if sediment toxicity was evident in the San Joaquin RIver Basin; identify areas with persistent sediment toxicity; and attempt to identify the causes of identified toxicity. Sediment samples were collected from October 2001 through September 2005 and analyzed for sediment toxicity, specific pesticides, and/or submitted for Toxicity Identification Evaluations (TIEs). Comments due by 21 August 2007. Questions and comments should be directed to Joshua Grover at (916) 464-4691 or by email to: jgrover@waterboards.ca.gov.
• Cover Letter, 23 KB, PDF (PDF info)
• Draft Report
• Cover, Executive Summary, Table of Contents, 412 KB, PDF (PDF info)
• Sediment Report Main Body, 788 KB, PDF (PDF info)
• Appendices, 958 KB, PDF (PDF info)
• TMDL Monitoring Plan for Selected Pesticides in the Sacramento and San Joaquin River Basins and the Sacramento-San Joaquin Delta During Irrigation Season 2007, 696 KB, PDF (PDF info)
  Describes the TMDL Monitoring Plan for Pesticides in 2007. For additional information contact Petra Lee at (916) 464-4603 or by email at plee@waterboards.ca.gov.
• Surface Water Ambient Monitoring Program (SWAMP)
• Regional Reports and Documents (on the State Water Board web site)
• Results of the 2006 TMDL Monitoring of Selected Pesticides During Irrigation Season in California’s Central Valley Waterways, March – August 2006, 633 KB, PDF (PDF info)
  Describes the pesticide TMDL monitoring in the Central Valley during the 2006 irrigation season. For additional information contact Petra Lee at (916) 464-4603 or by email at plee@waterboards.ca.gov.
• Data Results in MS Excel format, 118 KB, MS Excel
• Results of the 2006 TMDL Monitoring of Pesticides in California’s Central Valley Waterways January - March 2006, 677 KB, PDF (PDF info)
  Describes the pesticide TMDL monitoring in the Central Valley for the 2006 storm season. For ease of use, MS Excel format data are also available. For additional information contact Petra Lee at (916) 464-4603 or by email at plee@waterboards.ca.gov.
• Data Results in MS Excel format, 123 KB, MS Excel
• Monitoring of Sediment-bound Contaminants in the Lower Sacramento River Watershed, April 2003 , 552 KB, PDF (PDF info)
  Results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). Sediment samples were analyzed for metals, polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCs), pyrethroid pesticides, and organophosphate pesticides (OPs). For more information please contact Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• Survey of Zooplankton Community Structure and Abundance in Agriculture-dominated Waterways in the Lower Sacramento River Watershed, 474 KB, PDF (PDF info)
  Results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). A preliminary survey of zooplankton abundance and diversity in agriculture-dominated waterways in the Lower Sacramento River Watershed, including assessment of zooplankton temporal variation over a relatively short time-frame and potential association with environmental variables during the agricultural irrigation season, August and September 2004. For more information please contact Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• Aquatic Toxicity Due to Residential Use of Pyrethroid Insecticides, 23 KB, PDF (PDF info)
  Results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). Abstract available and full citation. Sediment toxicity testing, sediment chemistry analyses, and bioassessment used to examine water quality impacts of urban usage of pyrethroid insecticides. For more information, please contact Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• Benthic Macroinvertebrate Colonization of Artificial Substrates in Agriculture-dominated Waterways of the Lower Sacramento River, 1.31 MB*, PDF (PDF info)
  This report presents the results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP). Bioassessment approaches used in concert with analytical chemistry and toxicity testing to examine environmental stressors associated with storm water runoff in agriculture-dominated waterways. For more information please contact Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• Benthic Macroinvertebrate Bioassessment of San Joaquin River Tributaries: Spring and Fall 2002, 1.68 MB*, PDF (PDF info)
  Results for Total Maximum Daily Load, bioassessment sampling in the San Joaquin River Watershed, Spring and Fall 2002. For more information, please contact Jay Rowan at (916) 464-4718 or by email at jrowan@waterboards.ca.gov.
• Central Valley Pesticide Monitoring Quality Assurance Project Plan (QAPP) & Monitoring Plan (MP) 2006, 1.29 MB*, PDF (PDF info)
  The QAPP and MP were written for the Pesticide TMDL Unit's sampling plan for 2006. The plans include storm, irrigation, and TMDL compliance monitoring. For more information, please contact Petra Lee at (916) 464-4603 or by email at plee@waterboards.ca.gov.
• Macroinvertebrate Assemblages in Agriculture- and Effluent-dominated Waterways of the Lower Sacramento River Watershed (Water Year 2000-2002), 1.37 MB*, PDF (PDF info)
  This report presents the results of the Lower Sacramento River Surface Water Ambient Monitoring Program (SWAMP), bioassessment of agriculture- and effluent-dominated waterways. For more information, please contact Karen Larsen at (916) 464-4646 or by email to: klarsen@waterboards.ca.gov.
• Grassland Watershed (Water Year 1998), 770 KB, PDF (PDF info)
  Agricultural Drainage Contribution to Water Quality in the Grassland Watershed of Western Merced County, California: October 1997 - September 1998, Agricultural Regulatory and Planning Unit. For more information, please contact Phillip Crader at (916) 464-4604 or by email at pcrader@waterboards.ca.gov.
• Grassland Watershed (Water Years 1999 & 2000), 779 KB, PDF (PDF info)
  Agricultural Drainage Contribution to Water Quality in the Grassland Watershed of Western Merced County, California: October 1998 - September 2000. San Joaquin River Watershed Unit. April 2002. For more information, please contact Phillip Crader at (916) 464-4604 or by email at pcrader@waterboards.ca.gov.
• Impaired Water Bodies 303(d) List and Total Maximum Daily Loads (TMDLs)
• Lower San Joaquin River (Water Year 1998), 463 KB, PDF (PDF info)
  Water Quality of the Lower San Joaquin River; Lander Avenue to Vernalis: October 1997 - September 1998. Agricultural Regulatory and Planning Unit. May 2000. For more information, please contact Phillip Crader at (916) 464-4604 or by email at pcrader@waterboards.ca.gov.
• Lower San Joaquin River (Water Years 1999 & 2000), 2.7 MB*, PDF (PDF info)
  Water Quality of the Lower San Joaquin River; Lander Avenue to Vernalis: October 1998 - September 2000. San Joaquin River Watershed Unit. April 2002. For more information, please contact Phillip Crader at (916) 464-4604 or by email at pcrader@waterboards.ca.gov.
• Macroinvertebrate Assemblages of the San Joaquin River Watershed, (2001), 733 KB, PDF (PDF info)
  Results for the Surface Water Ambient Monitoring Program, bioassessment sampling in the San Joaquin River Watershed, June and September-October, 2001. For more information, please contact Jay Rowan at (916) 464-4718 or by email at jrowan@waterboards.ca.gov.
• Sacramento Urban Rain and Creek Monitoring 2001-2003, 639 KB, PDF (PDF info)
  This report presents the results of pesticides monitoring in Sacramento metropolitan area rainwater and creeks during the 2001, 2002 and 2003 orchard dormant spray seasons. For more information, contact Gene Davis at (916) 464-4687 or by email at gdavis@waterboards.ca.gov.
• Sacramento Urban Rain Monitoring Report 2004, 866 KB, PDF (PDF info)
  Results of pesticides monitoring in Sacramento metropolitan area rainwater during the 2004 orchard dormant spray season. For more information, contact Petra Lee at (916) 464-4603 or by email at plee@waterboards.ca.gov.
• Sacramento Urban Rain Quality Assurance Project Plan (QAPP) 2005, 1.86 MB*, PDF (PDF info)
  This QAPP was written for the 2005 orchard dormant spray season rain water monitoring and includes data from Sacramento Stormwater Permittees rain water collection effort. For more information, contact Petra Lee at (916) 464-4603 or by email at plee@waterboards.ca.gov.
• 2004 Sacramento Valley Diazinon Monitoring Report, 67 KB, PDF (PDF info)
  This report presents a brief summary of the 2004 TMDL monitoring for diazinon in California’s Sacramento Valley waterways January-March 2004. For more information, contact Danny McClure at (916) 464-4751 or by email at dmcclure@waterboards.ca.gov.
• Sacramento and San Joaquin Delta, 575 KB, PDF (PDF info)
  This report presents the results of pesticides monitoring conducted in the Sacramento and San Joaquin Delta during 2002 and 2003. For more information, contact Zhimin (Jamie) Lu at (916) 464-4830 or by email at zlu@waterboards.ca.gov.
• San Joaquin River
• San Joaquin River Real-time Program
  Regional Board staff is participating in a two year program to monitor and model real time discharge and salinity in the San Joaquin River. The above link is to a web page maintained by the Department of Water Resources, San Joaquin District. This web page includes a description of the program, site descriptions and reports, and weekly real time forecasts.
• Salinity & Boron Basin Plan Amendment for the San Joaquin River at Vernalis
• Salinity & Boron Basin Plan Amendment for the San Joaquin River Upstream of Vernalis
• Selenium in Wetland Water Supply Channels (Water Year 1998), 2.0 MB*, PDF (PDF info)
  Review of Selenium Concentrations in Wetland Water Supply Channels in the Grassland Watershed, Agricultural Regulatory and Planning Unit. May 2000. For more information, please contact Phillip Crader at (916) 464-4604 or email: pcrader@waterboards.ca.gov.
• Selenium in Wetland Water Supply Channels (Water Years 1999 & 2000), 770KB, PDF (PDF info)
  Review of Selenium Concentrations in Wetland Water Supply Channels in the Grassland Watershed. San Joaquin River Watershed Unit. April 2002. For more information, please contact Phillip Crader at (916) 464-4604 or by email at pcrader@waterboards.ca.gov.
• Ten Year Load Report
  Loads of Salt, Boron, and Selenium in the Grassland Watershed and Lower San Joaquin River, October 1985 to September 1995, Raw Data Supplemental Appendix, Agricultural Regulatory and Planning Unit.

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--Web page updated 04/01/2011